Flagging operations will only be in place during work operations. The road will remain open to thru traffic with intermittent lane closures in place during operations to complete final punch list work. Westbound 19 Mile Road – 19 Mile Road to southbound Van Dyke Avenue to Westbound 18 Mile Road to northbound Ryan Road to 19 Mile RoadĢ3 Mile Road from Card Road to North Avenue. The detour for 19 Mile Road is as follows:Įastbound 19 Mile Road – 19 Mile Road to southbound Ryan Road to EB 18 Mile Road to northbound Van Dyke Avenue to 19 Mile Road 19 Mile Road through traffic will be detoured at Ryan Road and Van Dyke Avenue. Local access will be maintained to all businesses along 19 Mile Road. The closure is anticipated to remain in place until June 7 (estimated dates subject to change). The detour for 18 ½ Mile Road (west of Mound Road) is as follows:įrom southbound Mound Road to westbound 18 ½ Mile Road – Westbound 18 Mile Road to Ryan Roadįrom westbound 18 ½ Mile Road to Mound Road – Ryan Road to eastbound 18 Mile Roadġ9 Mile Road will be closed at the intersection of Mound Road starting May 17-June 7. 18 ½ Mile Road through traffic will be detoured at 18 Mile Road and Ryan Road. Local access will be maintained to all residences along 18 ½ Mile Road. The results of these inspections prompted MDOT to move forward with rehabilitating the substructure as well.Westbound 18 ½ Mile Road will be closed at the intersection of Mound Road starting May 19- June 9. Work entailed an in-depth evaluation of all substructure units, crash walls, slope protection and downspouts, and provided a cursory evaluation of the associated beam-ends and bearings and fencing. Benesch assisted in the inspection of all substructure elements, which included 193 piers and two abutments. With the superstructure redecking complete, the focus then turned to the bridge’s substructure. Not only was the project completed on time, but it enhanced the surrounding area, addressed growing traffic needs, boosted the local economy, and improved public access and safety within the corridor. A project website, Twitter page and Facebook page were also created to communicate project progress. Several public meetings were conducted to inform the public, solicit input and refine the design as necessary. A robust public involvement strategy was also developed to create public awareness for detours and project progress. The plan involved maintaining three northbound lanes on one deck, one northbound lane for contractor access, and detouring all southbound lanes while constructing the other deck full-width. With 37 million vehicles crossing this structure every year, a complex traffic management plan was put in place to maximize constructability and minimize traveler delay, while ensuring the project stayed on track for completion. Another innovation involved a deep deck haunch design that simplified deck construction at a lower cost and ensured timely project completion. It used three-dimensional, finite element modeling rather than more conservative AASHTO methods for live load distribution. To save construction time and money, an innovative and enhanced load rating technique was utilized to improve the accuracy of the bridge ratings and eliminate unnecessary strengthening work. A key objective set by the Michigan Department of Transportation (MDOT) was to aggressively redeck the bridge within two construction seasons with minimal disruption to travelers and surrounding residents.Īs lead designer for this project, Benesch used innovative applications of new and existing technologies to overcome major challenges such as high traffic volume, the expedited project schedule, and extensive coordination with several utility companies, four railroads and the City of Detroit.
This massive project entailed the replacement of over 1,200,000 square feet of existing bridge deck. Rather than replacing the 50-year-old deteriorating structure, MDOT opted for a more cost effective deck replacement, which saved $300 million and extended the life of the bridge by 50+ years. The I-75 over the Rouge River structure is an eight-lane, 8,600-foot-long structure that connects Detroit to Canada and carries the highest traffic volume in the State of Michigan.
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